
.root_in{
    display: flex;
    height: calc(100vh - 80px)
}
.root_left{
    width: 260px;
    margin: 0;
    padding: 0;
    float: left;
    background: rgb(248, 248, 248);
}
.root_left>a{
    text-decoration: none;
    color: rgba(0,0,0,.65);
    font-size: 17px;
    font-weight: bolder;
    padding: 0 0 0 30px;
    display: block;
    width: 85%;
    height: 60px;
    /* background: rgb(158, 150, 150); */
    border-radius: 0 28px 28px 0;
    line-height: 60px;
    transition:  .6s;
}
.root_left>a:hover{
    background: rgb(212, 212, 212);
}
.root_right{
    width: 100%;
    float: right;
    background: rgb(248, 248, 248);
    overflow: hidden;
}
.root_left_nav{
    background: rgb(212, 212, 212);
}